#ifndef _UNITVOL_H__
#define _UNITVOL_H__
#include "Unit.h"

class VolumeUnit:public Unit
{
public:
   static VolumeUnit& getTBSP();
   static VolumeUnit& getTSP();
   static VolumeUnit& getOZ();
   static VolumeUnit& baseUnit();   

private:
   VolumeUnit(int ratio, std::string);
   static VolumeUnit* baseUnit_m;
};


#endif
